| Aparna Mallavarapu | 7800c8c | 2013-06-28 07:30:22 -0700 | [diff] [blame] | 1 | /* Copyright (c) 2013, The Linux Foundation. All rights reserved. |
| 2 | * |
| 3 | * Redistribution and use in source and binary forms, with or without |
| 4 | * modification, are permitted provided that the following conditions are |
| 5 | * met: |
| 6 | * * Redistributions of source code must retain the above copyright |
| 7 | * notice, this list of conditions and the following disclaimer. |
| 8 | * * Redistributions in binary form must reproduce the above |
| 9 | * copyright notice, this list of conditions and the following |
| 10 | * disclaimer in the documentation and/or other materials provided |
| 11 | * with the distribution. |
| 12 | * * Neither the name of The Linux Foundation nor the names of its |
| 13 | * contributors may be used to endorse or promote products derived |
| 14 | * from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| 20 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| 23 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| 25 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| 26 | * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #include <err.h> |
| 30 | #include <assert.h> |
| 31 | #include <debug.h> |
| 32 | #include <reg.h> |
| 33 | #include <platform/timer.h> |
| 34 | #include <platform/iomap.h> |
| 35 | #include <mmc.h> |
| 36 | #include <clock.h> |
| 37 | #include <platform/clock.h> |
| 38 | |
| 39 | void hsusb_clock_init(void) |
| 40 | { |
| 41 | |
| 42 | } |
| 43 | |
| 44 | void clock_init_mmc(uint32_t interface) |
| 45 | { |
| 46 | |
| 47 | } |
| 48 | |
| 49 | /* Configure MMC clock */ |
| 50 | void clock_config_mmc(uint32_t interface, uint32_t freq) |
| 51 | { |
| 52 | uint32_t reg; |
| 53 | |
| 54 | reg = 0; |
| 55 | reg |= MMC_BOOT_MCI_CLK_ENABLE; |
| 56 | reg |= MMC_BOOT_MCI_CLK_ENA_FLOW; |
| 57 | reg |= MMC_BOOT_MCI_CLK_IN_FEEDBACK; |
| 58 | writel(reg, MMC_BOOT_MCI_CLK); |
| 59 | } |
| 60 | |
| 61 | /* Configure UART clock based on the UART block id*/ |
| 62 | void clock_config_uart_dm(uint8_t id) |
| 63 | { |
| 64 | |
| 65 | } |
| 66 | |
| 67 | /* Function to asynchronously reset CE. |
| 68 | * Function assumes that all the CE clocks are off. |
| 69 | */ |
| 70 | static void ce_async_reset(uint8_t instance) |
| 71 | { |
| 72 | |
| 73 | } |
| 74 | |
| 75 | static void clock_ce_enable(uint8_t instance) |
| 76 | { |
| 77 | |
| 78 | } |
| 79 | |
| 80 | static void clock_ce_disable(uint8_t instance) |
| 81 | { |
| 82 | |
| 83 | } |
| 84 | |
| 85 | void clock_config_ce(uint8_t instance) |
| 86 | { |
| 87 | /* Need to enable the clock before disabling since the clk_disable() |
| 88 | * has a check to default to nop when the clk_enable() is not called |
| 89 | * on that particular clock. |
| 90 | */ |
| 91 | clock_ce_enable(instance); |
| 92 | |
| 93 | clock_ce_disable(instance); |
| 94 | |
| 95 | ce_async_reset(instance); |
| 96 | |
| 97 | clock_ce_enable(instance); |
| 98 | } |